INVESTIGATION OF ELECTRICAL-CONDUCTIVITY AND SEEBECK COEFFICIENT OF CA-DOPED AND SR-DOPED LACRO3

Authors
STAKKESTAD G FAALAND S SIGVARTSEN T
Citation
G. Stakkestad et al., INVESTIGATION OF ELECTRICAL-CONDUCTIVITY AND SEEBECK COEFFICIENT OF CA-DOPED AND SR-DOPED LACRO3, Phase transitions, 58(1-3), 1996, pp. 159-173
Citations number
17
Categorie Soggetti
Crystallography,"Physics, Condensed Matter
Journal title
Phase transitions → ACNP
ISSN journal
01411594
Volume
58
Issue
1-3
Year of publication
1996
Part
B
Pages
159 - 173
Database
ISI
SICI code
0141-1594(1996)58:1-3<159:IOEASC>2.0.ZU;2-A
Abstract
The electrical conductivity and the Seebeck coefficient of one self pr oduced Ca-doped LaCrO3 interconnector plate and two commercial Ca- and Sr-doped LaCrO3 interconnector plates for solid oxide fuel cells have been studied by 4 point DC measurements from oxidizing to reducing at mospheres. The microstructure was studied on both as-sintered samples and samples exposed to a CO2 rich atmosphere. The commercial Sr-doped LaCrO3 has a higher electrical conductivity than the self produced Ca- doped LaCrO3, while the latter seemed to be most resistant to CO2 rich atmosphere.